Bismarck Weather Forecast

    • 33
    • 45

    Partly Sunny

    • 31
    • 45

    Partly Sunny

    • 32
    • 49

    Partly Sunny

    • 33
    • 52

    Mostly Cloudy

    • 32
    • 48

    Slight Chance Rain Showers

    • 33
    • 47

    Chance Rain Showers

Today 23 Oct Western Grant

Mostly sunny. Highs in the mid 50s. Except in the mid 40s at the higher Elevations. West Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph in the afternoon.

Tonight 23 Oct Western Grant

Partly cloudy. Areas of frost after midnight. Lows in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Bismarck Temperature Statistics

October Temperature

Garrett County Airport (25.5 miles)

  • Lowest 9 October, 2025

    37.4 °F

  • Average October

    54.9 °F

  • Highest 5 October, 2025

    77 °F

Climate (2020–Present)

Garrett County Airport (25.5 miles)

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  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    56.5 °F
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